Pipe and nut wrench provided with reversible jaw faces



G. C. HARDIE PIPE AND NUT WRENCH PROVIDED WITH REVERSIBLE JAW FACESFiled Sept 29, 1947 INVEN TOR.

Attorneys Patented Nov. 21, 1950 UNITED STATES PATENT OFFICE PIPE ANDNUT WRENCH PROVIDED -.ZVITH REVERSIBLE J FACES George'G. Hardie,Brooklyn, N. .Y.

Application September 29, 1.947, Serial No. 176,723

.1 Claim. 1

This invention relates to wrenches, and the primary object of theinvention is to provide a wrench whose jaws comprise jaw members, eachhaving pivotally :mounted thereon an angular reversable face plate whichmay be readily adjusted to adapt the wrench for use either as a pipewrench or as a nut wrench.

A further object is to provide a wrench having a jaw composed -of a jawmember, and a face plate having angularly related flanges respectivelyprovided with plain and toothed gripping faces, said face plate beingpivoted on said jaw member for rocking adjustment about an axis parallelwith said faces to bring either face into operative position.

Another object is to provide simple and efiicient means to mount theface plate on the jaw member, to limit rocking movement of said faceplate, and to secure the face plate in adjusted positions.

The exact nature of the present invention, as well as other objects andfeatures thereof, will become apparent from the following descriptionwhen considered in connection with the accompanying drawing, in which:

Figure 1 is a side elevational View, partly broken away and in section,of a wrench embodying the present invention;

Figure 2 is an elevational view looking toward the left of Figure 1,partly broken away and in section;

Figure 3 is a view somewhat similar to Figure 2 showing the face platesof the jaws adjusted to adapt the wrench for use as a nut wrench;

Figure 4 is a fragmentary section taken on line 4-4 of Figure l; and

Figure 5 is a fragmentary perspective view of the upper portion of thewrench with the jaw faces removed.

In the drawing, the invention has been illustrated as embodied in awrench of the type including a stationary outer jaw. a slidingadjustable inner jaw, and an adjusting screw for adjusting the innerjaw. This wrench comprises a shank '5 having its inner end formed toprovide a handle 6, and provided at its outer end with a stationary jawmember I disposed at right angles to the shank. The shank is providedbetween its ends with a rigid arm 8 disposed at right angles to theshank and parallel with the jaw member 1, said arm being provided withan internally threaded tubular free end portion 9 whose axis is parallelwith the shank and which threadedly receives the stem of an adjustingscrew Ill.

The wrench further includes an adjustable inner jaw member ll slidablymounted on the inner jaw member ll.

shank 5 and provided at its inner end with a socketed member H havingthe outer end of the adjusting screw ll) swivelled therein. For thelatter purpose, the outer end of the adjusting screw 'l'fl is providedwith an annular groove 12 which receives the inner end of a screw l2"threaded through one side of thesocketed member II.

The inner jaw member H is mounted onthe shank'5 between the outerjawmember 1 and'the arm 8 by means of cheek-plates l 3 that'havecendsprojecting beyond an end of the jaw member H and terminating in flangesl'3 directed toward each other and slidably engaged in longitudinalgrooves It provided in opposite sides of the shank 5. It will be notedthat the outer jaw member I is of rounded cross section at its innerside, and that the inner jaw member II has an outer portion of roundedcross section at its outer side as respectively indicated at a and b inFigure 5. A face plate having angularly related flanges l5 and I6 ispivotally mounted on each of the jaw members I and II for rockingadjustment about an axis parallel with the faces of the flanges l5 andI6. Thus, the face plates may be disposed as shown in Figures 1 and 2 toadapt the wrench fOr use as a pipe wrench, or as in Figure 3 to adaptthe wrench for use as a nut wrench. In accordance with this statement,it is pointed out that the flange l5 has a plain flat gripping face 0,and that the flange 16 has a toothed gripping face d.

Each face plate is provided at one end with a disk member I! thatconnects the flanges l5 and I6 and has a central aperture. A set screwl8 extends through this aperture of disk member I! and is threaded intothe associated jaw member. At its other end, the face plate of the outerjaw member 1 is engaged in a notch I9 provided in the adjacent edge ofshank 5. The inner jaw member H has an outward extension 20 which has aforwardly directed lug 2| under which is engaged the inner end of theface plate for said In this way, the face plates are mounted on the jawmembers for free rocking movement, and they may be secured in eitherposition of adjustment by tightening the associated set screws Is. Itwill be apparent that the face plate of the'outer jaw member isassembled to the latter by merely engaging the end of said face plate inthe notch l9 and then passing the associated set screw I8 through thedisk member I! of this face plate and threading it into said jawmember 1. In a like manner, the inner end of the face plate for jawmember H is simply engaged under lug 2| and then the associated setscrew 18 is passed through the disk member I! of this face plate andthreaded into the jaw member II. The inner end of the face plates aresmooth and rounded concentric with the axes of screws l8 so that theymay be readily turned r rocked about said axes. The jaw members 1 and IIare provided with lateral flanges 22 which act to properl limit therocking movement of the face plates. In other words, when the face plateis rocked in one direction, the free edge of flange [5 contacts one ofthe flanges 22, and when said face plate is rocked in the oppositedirection, the free edge of the flange IE will engage the other flange22 of the associated jaw member. As shown, the cheek plates [3 may beseparate from the inner jaw member II and riveted to opposite sides ofthe inner portion of the latter as at 23.

From the foregoing description, it is believed that the construction,manner of use, and advantages of the present invention will be readilyunderstood and appreciated by those skilled in the art. It will be seenthat the wrench is simple and comparatively inexpensive in construction,and that it is adapted to be readily arranged for operation as a pipewrench or as a nut wrench. Changes in the form, proportion andrminordetails of construction may be resorted to, such as fairly fall withinthe scope of the invention as claimed.

Having described the claimed as new is:

invention, what is A wrench including a shank having a stationary outerrounded jaw member and formed with a recess at the inner end of said jawmember, a face plate having two flanges disposed at a right angle toeach other and respectively provided with plane and toothed grippingfaces, a centrally apertured disk connecting the flanges at the outerend of the face plate, the inner end of the face plate being movable insaid recess, said disk being disposed against the outer end of the jawmember, and a pivot element extending through the disk and into the jawmember to mount the face plate on the jaw member for rocking adjustmentabout an axis parallel with said faces to bring either face intooperative position, said jaw member having stop flanges at pposite sidesthereof engageable by edges of the respective flanges of the face plateto limit rocking movement of the latter in opposite directions.

GEORGE C. HARDIE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

